package com.sky.controller.admin;
import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

/**
 * 菜品管理
 */

@RestController
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
@Slf4j
public class DishController {

    @Autowired
    private DishService dishService;

    @Qualifier("redisTemplate") //精确指定依赖注入对象的注解
    @Autowired
    private RedisTemplate redisTemplate;


    /**
     * 根据分类id查询菜品
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<DishVO>> list(Long categoryId) {
        System.out.println("DishController /admin/dish/list: " + categoryId);
        return Result.success();
    }



    /**
     * 新增菜品
     */
    @PostMapping
    @ApiOperation("新增菜品")
    public Result save(@RequestBody DishDTO dishDTO){
        log.info("新增菜品{}",dishDTO);
        dishService.saveWithFlavor(dishDTO);

        //清除redis中的缓存数据
        String key = "dish_" + dishDTO.getCategoryId();
        cleanCache(key);

        return Result.success();
    }

    /**
     * 菜品分页查询
     * @param dishPageQueryDTO
     * @return
     */
    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO){
        log.info("菜品分页查询：{}",dishPageQueryDTO);
        PageResult pageResult =dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }


    /**
     * 菜品删除
     */
    @DeleteMapping
    @ApiOperation("菜品删除")
    public Result delete(@RequestParam List<Long> ids) {
        log.info("菜品删除：{}",ids);
        dishService.deleteBatch(ids);

        //将Redis中的 所有的 以"dish_"开头的key都删掉
        cleanCache("dish_*");

        return Result.success();

    }


    /**
     * 起售 停售菜品
     * @param status
     * @param id
     * @return
     */
    @PostMapping("/status/{status}")
    @ApiOperation("起售停售 菜品")
    public Result<String> startOrStop(@PathVariable("status") Integer status, Long id){
        dishService.startOrStop(status,id);

        //将Redis中的 所有的 以"dish_"开头的key都删掉
        cleanCache("dish_*");


        return Result.success();
    }

    /**
     * 根据id获取菜品
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    @ApiOperation("根据id获取菜品")
    public Result<DishVO> getById(@PathVariable("id") Long id){
        log.info("根据id获取菜品");
        DishVO dishVO = dishService.getByIdWithFlavor(id);
        return Result.success(dishVO);
    }

    /**
     * 修改菜品
     * @param dishDTO
     * @return
     */
    @PutMapping
    @ApiOperation("修改菜品")
    public Result update(@RequestBody DishDTO dishDTO){
        log.info("修改菜品：{}",dishDTO);
        dishService.updateWithFlavor(dishDTO);

        //将Redis中的 所有的 以"dish_"开头的key都删掉
        cleanCache("dish_*");

        return Result.success();
    }


    // 统一来清理缓存数据
    private void cleanCache(String pattern){
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }
}
